Australian performing arts company "Strange Fruit" performs in Jerusalem's Zion Square as the opening act of the 50th Israel Festival. The annual festival runs for a few weeks and its program includes all the performing arts. The organizers view the festival as a means to promote artistic encounters, to encourage collaborations between Israeli and international performers and to introduce the public to emerging forms of art.

Lebanese and Syrian protesters march at Al Hamra Street during a demonstration against the Syrian government in Beirut, Lebanon. Supporters and opponents of the Syrian government staged simultaneous rallies in neighboring Lebanon amid heavy security. Lebanese police managed to keep the protesters away from each other, even though the rallies took place only meters apart.

President Barack Obama enjoys a glass of Guinness in his Moneygall, Ireland, alongside First Lady Michelle Obama. Obama is visiting Ireland, the homeland of his mother's ancestors, for one day at the start of a weeklong tour of Europe. He will meet with distant relatives in Moneygall and speak at a rally in central Dublin after a concert.

Vehicles are covered in ash near Kirkjubaearklaustur, Iceland. A dense cloud of ash from an Icelandic volcano was being blown toward Scotland on Monday, forcing two airlines to cancel their flights, President Obama to cut short his visit to Ireland and carriers across Europe to fear a repeat of the huge disruptions that stranded millions of passengers a year ago.

Annapolis Naval Academy freshmens make a human wall to climb the Herndon Monument, which is covered with lard. Each year the freshman class, known as 'Plebes,' climb the monument to retrieve the Plebian Sailor's hat and replace it with an officer's hat. The tradition is one step in marking the end of wearing freshman headgear and moving up to headgear more like a U.S. Naval officer.

A hospital is seen in the background of other damaged buildings after a large tornado hit the town of Joplin, Mo. The tornado caused damage to a large portion of the city, one of its two hospitals, and school.

Youths wear Stars and Stripes as they wait for President Obama in Dublin. Obama is visiting Ireland for one day. He will meet with distant relatives in Moneygall and speak at a rally in central Dublin after a concert.

President Obama with an Irish hurling stick following a meeting with Irish Prime Minister Enda Kenny at Farmleigh in Dublin, Ireland. Obama landed in Ireland on Monday for a visit celebrating his ancestral roots, kicking off a four-nation European tour.

This NASA image shows the newly installed Alpha Magnetic Spectrometer-2 visible at center of the International Space Station's starboard truss. The Alpha Magnetic Spectrometer, or AMS, is the largest scientific collaboration to use the orbital laboratory. This investigation is sponsored by the U.S. Department of Energy and made possible by funding from 16 nations. Led by Nobel Laureate Samuel Ting, more than 600 physicists from around the globe will be able to work with the data generated from this particle physics detector. The mission of the AMS is, in part, to seek answers to the mysteries of antimatter, dark matter and cosmic ray propagation in the universe.

Small waves crash over rocks across the harbor from the Sydney skyline. A team of Australia's top scientists warned on Monday of dire climate change in calling for the nation's carbon-dominated energy sector to turn green, as the government struggles to win support to cut pollution. The report by a government-appointed Climate Commission said many of Australia's major cities faced a serious threat from rising sea levels, particularly Sydney.

Human genetic material is stored at a laboratory in Munich. On Wednesday the ethics commission of the German lower house of parliament (Bundestag) will discuss alternative proposals for a new law on the use of preimplantation genetic diagnosis (PGD). Banned by German legislation, this is a technique used to identify genetic defects in embryos created through in vitro fertilization before pregnancy.

A NASA MODIS satellite image shows a plume from the Grimsvotn volcano, under the Vatnajokull glacier in southeast Iceland, casting a shadow to the west. Ash from a massive plume of smoke from an eruption of Iceland's most active volcano could spread south to parts of Europe next week, but experts on Sunday said they hoped the impact on air travel would be limited. The eruption at Grimsvotn has so far hit only Iceland, which closed its international airspace. A thick cloud of ash blocked out the daylight at towns and villages at the foot of the glacier where the volcano lies and covered cars and buildings.

Libyan rebel fighters prepare their machine gun at Misrata's western front line. Forces loyal to Moammar Kadafi shelled neighborhoods in the west and south of Misrata on Monday, a rebel spokesman and a witness said, adding that explosions were also heard in the port area. Rebels say they have pushed Kadafi's forces 25 kilometers from the center of the city after weeks of street fighting and bombardment.

Visitors to Scarborough in northeastern England cover their faces as gale-force winds blow up a sand storm on the North Bay and promenade. Winds across northern England and Scotland are expected to peak around 80 mph Monday.

A soldier from the armed forces of Belarus smashes a block of concrete with a hammer on the chest of a fellow soldier lying on a bed of nails at the MILEX-2011 arms and military equipment exhibition. Several countries from the former Soviet Union took part in the exhibition.

A wind gust hits, from left, Britain's Queen Elizabeth II, President Obama, Prince Charles, First Lady Michelle Obama and Prince Philip as they watch an honor guard at Buckingham Palace during the Obamas' state visit to Britain.

Tribesmen carry an injured fellow tribesman amid clashes with police near the house of the tribal leader Shiekh Sadiq al-Ahmar. Police forces exchanged sporadic gunfire with guards of al-Ahmar, who has sided with protesters demanding an end to President Ali Abdullah Saleh's rule, witnesses said.

A demonstrator sleeps as people camp out in the Puerta del Sol two days after Spanish regional and local elections. Tens of thousands of protesters have joined daily with those camped out for the last 10 days to protest the government's handling of the economic crisis.

Russian space agency personnel carry U.S. astronaut Catherine Coleman shortly after her landing in a Soyuz southeast of the Kazakh town of Jezkazgan. The Soyuz capsule brought back Italian, Russian and American astronauts from the International Space Station.

A woman with a painted face attends a protest at Freedom Park, where about 100 activists appealed to the government to save the nation's Prey Lang forests. Protesters, who call themselves Cambodia's "Avatars", had their bodies painted in green and blue and wore traditional ethnic Kuy clothes, including hats made from tree materials.

Plants sprout as small streams of water begin to fill the cracks of the dried-up bed of a branch of the Hanjiang River. The worst drought in 50 years has hit the middle and lower reaches of the Yangtze River, affecting 9.89 million people in four central Chinese provinces.

Members of the activist group Oxfam wear giant papier mâché heads representing, from left, British Prime Minister David Cameron, President Obama, German Chancellor Angela Merkel, French President Nicolas Sarkozy, Russian President Dmitry Medvedev, Italian President Silvio Berlusconi, Canadian Prime Minister Stephen Harper and Japanese Prime Minister Naoto Kan, in front of the Eiffel Tower. Their real-life counterparts are meeting in France starting Thursday.

A man acknowledges his fellow protesters as they settle in for an all-night demonstration at Sol Square. Thousands of Spaniards defied a ban on pre-election demonstrations to express discontent with political parties and the country's handling of the economic crisis.

A security officer kicks a supporter of the pro-monarch National Democratic Party who during a protest had broken through a police barrier to a forbidden area near Nepal's Constitutional Assembly building.

A vendor at a street market sets up his display amid a time of economic turmoil for Belarussians, who have been sweeping stores in a frantic attempt to spend their devaluing currency as prices on imported goods soar.

Flowers rest on a monument with names of victims of the Srebrenica massacre. Bosnian Serb wartime general Ratko Mladic was arrested in Serbia on Thursday after years on being the run from international genocide charges, opening the way for the once-pariah state to approach the European mainstream.

Lt. Col. John Klatt of the Air National Guard flies inverted over Jones Beach in New York. Flanking Col. Klatt are aerobats Mike Goulian, left, and Bill Kerns. All three will perform in this weekend's Bethpage Federal Credit Union Air Show at Jones Beach State Park as part of New York City's Fleet Week.

Kashmiri Muslims raise their hands as a head priest, not shown, displays a relic, believed to be a hair from the beard of the Prophet Muhammad, during special prayers on the death anniversary of Abu Bakr Siddiq, the first Caliph of Islam, at Hazratbal Shrine.

Ducklings climb a ramp to access their "pond" in the inner courtyard of St. Anne's Retirement Community near Lancaster. The ducklings have been entertaining the residents of the retirement community with their antics.

Women line up for food distribution in a makeshift camp for the internally displaced in a village in southern Sudan. Tens of thousands of southern Sudanese fled heavy fighting in the hotly contested border town of Abyei earlier this week. Owing to the intensity of the fighting, many people fled their homes with nothing. International humanitarian organizations are moving to supply them with basic of goods and services.

The Week in Pictures | May 23-29, 2011

The Week in Pictures was dominated by images from Joplin, Mo., where a massive tornado ripped through the city, killing at least 126. In Europe, President Barack Obama wrapped up a six-day, four-nation trip, during which he raised a pint with locals in Ireland and met the royals in London. Other smaller moments were captured too, so take a look.